Hello Saudagar,

It is difficult to predict the qualification marks for the jee advance exam. but it is good enough to score +85 percentile to qualify for the jee advance exam.

you can also predict your rank using the formula:

(100-your total score)*869010/100 for jan exam . if the number of candidates for april exam increased to 1200000 then your final rank shall be (100-your total score)*1200000/100.

you can also the carrers360 college predictor to get to know your colleges:

Hope it helps.

All the best.